You’re right but look at pulling INB and jumping it to INU or IND like machine room inspection. Same applies to any controller with MR inspection, won’t work if car is on access or car top.
As far as the problems getting a door scan, what program are you using? It’s been years but I do remember there being something tricky about using the old DMC FAST PC program with “Orange Cable”. I’ve also never used the World tool but I think they have their own instructions. The FAST tool, and any of TK’s programs that look just like the FAST tool, work just like per the FAST Guide or big book.